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Abstract

We present a novel optical method, to our knowledge, to measure the refractive index of liquids by means of the images produced by an optofluidic lens. In addition we propose a new method to make optofluidic lenses.

Figures (10)

Liquid lens fabrication sequence. a) Silicone mixture is poured in the acrylic square. A glass lens is inserted in the mixture. b) After curing acrylic square is taken out. c) silicone square is cut and the glass lens is taken away. d) Uncured silicone mixture is used to seal the cavity. e) Hollow lens is ready.